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Related to humidification: humidity, dehumidification


The process of increasing the water vapor content of a gas.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


The process of increasing the water-vapor content (humidity) of a gas. This process and its reverse operation, dehumidification, are important steps in air conditioning for human comfort and in many industrial operations. See Air conditioning, Dehumidifier

Air (or other gas) can be humidified by direct injection of water vapor (steam) or, more commonly, by the evaporation of liquid water in contact with the airstream. When evaporation occurs, heat is required to provide the latent heat of vaporization. If no external source of heat is provided, either the water or the air, or both, will be cooled. The cooling of water by this process is the basis of operation for industrial cooling towers, whereas evaporative air coolers often used in hot, dry climates depend upon the air-cooling effect. In both these types of apparatus, humidification of the air occurs, although it is not the prime objective of the operation. In units designed primarily for humidification, the incoming air is usually heated to provide the latent heat of evaporation and to permit the air to leave the unit at controlled levels of both temperature and humidity. See Cooling tower

McGraw-Hill Concise Encyclopedia of Engineering. © 2002 by The McGraw-Hill Companies, Inc.


The process of adding moisture to a volume of air; for example, to an air-conditioning system.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
The innovation in controls is based on using the wet-bulb temperature of the incoming air for control of humidification. This also provides stable supply air temperature and prevents wet/dry cycling of the evaporative media and associated wide variation in supply air humidity and temperatures.
Insofar as humidification requirements are concerned, the difference is effectively non-existent.
In this month's Focus on Technology, we'll look at some of the latest oxygen delivery devices that integrate humidification.
Eaton-Williams has now developed the technology further and launched Vapaserv Humidification System.
CTT Systems AB (CTT) (STO:CTT), a provider of aircraft humidity control systems, announced on Wednesday the selection by an undisclosed airline of its Inflight Humidification (IFH) in business class, to be line-fitted in its entire Airbus A350-900 fleet.
CTT Systems AB (STO:CTT), a provider of aircraft humidity control systems, announced on Tuesday its first Business Class cabin humidification award for the Airbus A350-900 aircraft.
Currently, the most widely used residential humidification technologies are forced air furnace-mounted bypass wetted media, spray mist, and steam humidifiers.
The Green Grid commissioned a white paper in 2008 from two past presidents of the ESD (one of whom works for an IT equipment manufacturer) to review the need for humidification of data centers for prevention of ESD events.
Cair provides humidification of aircraft cabins without condensation, giving a humidity of 25% and thus reducing passengers' dry air related problems.
In the previous installment in this series about delivering aerosolized medication during mechanical ventilation I addressed the effect of humidification on aerosol delivery.